Question

with the term of ap 163,160,167........is the first negative

Answer 1

Answer: Tn = a+{n-1}d

a=163 d=-3

let the first negative term be -1

now ,

-1=163+{n-1}*-3

-1=163-3n+3

3n=167

n=167/3

n=55.6

so n=57

Step-by-step explanation: